Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions

doi:10.1016/j.wear.2007.01.006

IMR OpenIR

	Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions
	Zheng, Yugui; Luo, Suzhen; Ke, Wei
通讯作者	Zheng, Yugui(ygzheng@imr.ac.cn)
	2007-05-10
发表期刊	WEAR
ISSN	0043-1648
卷号	262 期号:11-12 页码:1308-1314
摘要	The effect of cavitation on free corrosion potential, potentiodynamic polarization curves for 20SiMn low alloy steel and 0Crl3Ni5Mo and CrMnN stainless steels in HCl, NaCl, NaCl + Na2NO2 solutions, was investigated. Cavitation was produced by using a magnetostrictive-driven apparatus. Experimental results showed that the effect of cavitation on cathodic and anodic reactions was much different in given media. Cavitation shifts the free corrosion potential in cathodic direction, and mainly affects the anodic process, i.e. increases anodic current densities by two or three orders of magnitude for self-passivating systems. Cavitation shifts the free corrosion potential in noble direction and mainly affects the cathodic process, i.e. increases cathodic current densities for non-passivating systems. These results show a higher dependence on passivity of materials in given environments. The above phenomena were explained by the ideal polarization curves. (C) 2007 Elsevier B.V. All rights reserved.
关键词	cavitation corrosion passivity free corrosion potential polarization curves
DOI	10.1016/j.wear.2007.01.006
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000246732800004
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：45[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/91708
专题	中国科学院金属研究所
通讯作者	Zheng, Yugui
作者单位	Chinese Acad Sci, Met Res Inst, Environm Corros Ctr, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Yugui,Luo, Suzhen,Ke, Wei. Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions[J]. WEAR,2007,262(11-12):1308-1314.
APA	Zheng, Yugui,Luo, Suzhen,&Ke, Wei.(2007).Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions.WEAR,262(11-12),1308-1314.
MLA	Zheng, Yugui,et al."Effect of passivity on electrochemical corrosion behavior of alloys during cavitation in aqueous solutions".WEAR 262.11-12(2007):1308-1314.